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"; // Using strlen() to return the string length echo substr_count($str,"is")."
"; // The number of times "is" occurs in the string echo substr_count($str,"is",2)."
"; // The string is now reduced to "is is nice" echo substr_count($str,"is",3)."
"; // The string is now reduced to "s is nice" echo substr_count($str,"is",3,3)."
"; // The string is now reduced to "s i" ?>
12
2
2
1
0